Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 224 insertions, 0 deletions

diff --git a/widget/windows/nsWindowBase.cpp b/widget/windows/nsWindowBase.cpp
new file mode 100644
index 0000000000..a9c9d2b53e
--- /dev/null
+++ b/widget/windows/nsWindowBase.cpp
@@ -0,0 +1,224 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsWindowBase.h"
+
+#include "mozilla/MiscEvents.h"
+#include "mozilla/PresShell.h"
+#include "mozilla/StaticPrefs_apz.h"
+#include "KeyboardLayout.h"
+#include "WinUtils.h"
+#include "npapi.h"
+
+using namespace mozilla;
+using namespace mozilla::widget;
+
+static const wchar_t kUser32LibName[] = L"user32.dll";
+bool nsWindowBase::sTouchInjectInitialized = false;
+InjectTouchInputPtr nsWindowBase::sInjectTouchFuncPtr;
+
+bool nsWindowBase::DispatchPluginEvent(const MSG& aMsg) { return false; }
+
+// static
+bool nsWindowBase::InitTouchInjection() {
+  if (!sTouchInjectInitialized) {
+    // Initialize touch injection on the first call
+    HMODULE hMod = LoadLibraryW(kUser32LibName);
+    if (!hMod) {
+      return false;
+    }
+
+    InitializeTouchInjectionPtr func =
+        (InitializeTouchInjectionPtr)GetProcAddress(hMod,
+                                                    "InitializeTouchInjection");
+    if (!func) {
+      WinUtils::Log("InitializeTouchInjection not available.");
+      return false;
+    }
+
+    if (!func(TOUCH_INJECT_MAX_POINTS, TOUCH_FEEDBACK_DEFAULT)) {
+      WinUtils::Log("InitializeTouchInjection failure. GetLastError=%d",
+                    GetLastError());
+      return false;
+    }
+
+    sInjectTouchFuncPtr =
+        (InjectTouchInputPtr)GetProcAddress(hMod, "InjectTouchInput");
+    if (!sInjectTouchFuncPtr) {
+      WinUtils::Log("InjectTouchInput not available.");
+      return false;
+    }
+    sTouchInjectInitialized = true;
+  }
+  return true;
+}
+
+bool nsWindowBase::InjectTouchPoint(uint32_t aId, LayoutDeviceIntPoint& aPoint,
+                                    POINTER_FLAGS aFlags, uint32_t aPressure,
+                                    uint32_t aOrientation) {
+  if (aId > TOUCH_INJECT_MAX_POINTS) {
+    WinUtils::Log("Pointer ID exceeds maximum. See TOUCH_INJECT_MAX_POINTS.");
+    return false;
+  }
+
+  POINTER_TOUCH_INFO info;
+  memset(&info, 0, sizeof(POINTER_TOUCH_INFO));
+
+  info.touchFlags = TOUCH_FLAG_NONE;
+  info.touchMask =
+      TOUCH_MASK_CONTACTAREA | TOUCH_MASK_ORIENTATION | TOUCH_MASK_PRESSURE;
+  info.pressure = aPressure;
+  info.orientation = aOrientation;
+
+  info.pointerInfo.pointerFlags = aFlags;
+  info.pointerInfo.pointerType = PT_TOUCH;
+  info.pointerInfo.pointerId = aId;
+  info.pointerInfo.ptPixelLocation.x = aPoint.x;
+  info.pointerInfo.ptPixelLocation.y = aPoint.y;
+
+  info.rcContact.top = info.pointerInfo.ptPixelLocation.y - 2;
+  info.rcContact.bottom = info.pointerInfo.ptPixelLocation.y + 2;
+  info.rcContact.left = info.pointerInfo.ptPixelLocation.x - 2;
+  info.rcContact.right = info.pointerInfo.ptPixelLocation.x + 2;
+
+  for (int i = 0; i < 3; i++) {
+    if (sInjectTouchFuncPtr(1, &info)) {
+      break;
+    }
+    DWORD error = GetLastError();
+    if (error == ERROR_NOT_READY && i < 2) {
+      // We sent it too quickly after the previous injection (see bug 1535140
+      // comment 10). On the first loop iteration we just yield (via Sleep(0))
+      // and try again. If it happens again on the second loop iteration we
+      // explicitly Sleep(1) and try again. If that doesn't work either we just
+      // error out.
+      ::Sleep(i);
+      continue;
+    }
+    WinUtils::Log("InjectTouchInput failure. GetLastError=%d", error);
+    return false;
+  }
+  return true;
+}
+
+void nsWindowBase::ChangedDPI() {
+  if (mWidgetListener) {
+    if (PresShell* presShell = mWidgetListener->GetPresShell()) {
+      presShell->BackingScaleFactorChanged();
+    }
+  }
+}
+
+nsresult nsWindowBase::SynthesizeNativeTouchPoint(
+    uint32_t aPointerId, nsIWidget::TouchPointerState aPointerState,
+    LayoutDeviceIntPoint aPoint, double aPointerPressure,
+    uint32_t aPointerOrientation, nsIObserver* aObserver) {
+  AutoObserverNotifier notifier(aObserver, "touchpoint");
+
+  if (StaticPrefs::apz_test_fails_with_native_injection() ||
+      !InitTouchInjection()) {
+    // If we don't have touch injection from the OS, or if we are running a test
+    // that cannot properly inject events to satisfy the OS requirements (see
+    // bug 1313170)  we can just fake it and synthesize the events from here.
+    MOZ_ASSERT(NS_IsMainThread());
+    if (aPointerState == TOUCH_HOVER) {
+      return NS_ERROR_UNEXPECTED;
+    }
+
+    if (!mSynthesizedTouchInput) {
+      mSynthesizedTouchInput = MakeUnique<MultiTouchInput>();
+    }
+
+    WidgetEventTime time = CurrentMessageWidgetEventTime();
+    LayoutDeviceIntPoint pointInWindow = aPoint - WidgetToScreenOffset();
+    MultiTouchInput inputToDispatch = UpdateSynthesizedTouchState(
+        mSynthesizedTouchInput.get(), time.mTime, time.mTimeStamp, aPointerId,
+        aPointerState, pointInWindow, aPointerPressure, aPointerOrientation);
+    DispatchTouchInput(inputToDispatch);
+    return NS_OK;
+  }
+
+  bool hover = aPointerState & TOUCH_HOVER;
+  bool contact = aPointerState & TOUCH_CONTACT;
+  bool remove = aPointerState & TOUCH_REMOVE;
+  bool cancel = aPointerState & TOUCH_CANCEL;
+
+  // win api expects a value from 0 to 1024. aPointerPressure is a value
+  // from 0.0 to 1.0.
+  uint32_t pressure = (uint32_t)ceil(aPointerPressure * 1024);
+
+  // If we already know about this pointer id get it's record
+  PointerInfo* info = mActivePointers.Get(aPointerId);
+
+  // We know about this pointer, send an update
+  if (info) {
+    POINTER_FLAGS flags = POINTER_FLAG_UPDATE;
+    if (hover) {
+      flags |= POINTER_FLAG_INRANGE;
+    } else if (contact) {
+      flags |= POINTER_FLAG_INCONTACT | POINTER_FLAG_INRANGE;
+    } else if (remove) {
+      flags = POINTER_FLAG_UP;
+      // Remove the pointer from our tracking list. This is nsAutPtr wrapped,
+      // so shouldn't leak.
+      mActivePointers.Remove(aPointerId);
+    }
+
+    if (cancel) {
+      flags |= POINTER_FLAG_CANCELED;
+    }
+
+    return !InjectTouchPoint(aPointerId, aPoint, flags, pressure,
+                             aPointerOrientation)
+               ? NS_ERROR_UNEXPECTED
+               : NS_OK;
+  }
+
+  // Missing init state, error out
+  if (remove || cancel) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  // Create a new pointer
+  info = new PointerInfo(aPointerId, aPoint);
+
+  POINTER_FLAGS flags = POINTER_FLAG_INRANGE;
+  if (contact) {
+    flags |= POINTER_FLAG_INCONTACT | POINTER_FLAG_DOWN;
+  }
+
+  mActivePointers.Put(aPointerId, info);
+  return !InjectTouchPoint(aPointerId, aPoint, flags, pressure,
+                           aPointerOrientation)
+             ? NS_ERROR_UNEXPECTED
+             : NS_OK;
+}
+
+nsresult nsWindowBase::ClearNativeTouchSequence(nsIObserver* aObserver) {
+  AutoObserverNotifier notifier(aObserver, "cleartouch");
+  if (!sTouchInjectInitialized) {
+    return NS_OK;
+  }
+
+  // cancel all input points
+  for (auto iter = mActivePointers.Iter(); !iter.Done(); iter.Next()) {
+    auto info = iter.UserData();
+    InjectTouchPoint(info->mPointerId, info->mPosition, POINTER_FLAG_CANCELED);
+    iter.Remove();
+  }
+
+  nsBaseWidget::ClearNativeTouchSequence(nullptr);
+
+  return NS_OK;
+}
+
+bool nsWindowBase::HandleAppCommandMsg(const MSG& aAppCommandMsg,
+                                       LRESULT* aRetValue) {
+  ModifierKeyState modKeyState;
+  NativeKey nativeKey(this, aAppCommandMsg, modKeyState);
+  bool consumed = nativeKey.HandleAppCommandMessage();
+  *aRetValue = consumed ? 1 : 0;
+  return consumed;
+}